Объяснение:
(H3C-COO)2Mg (1а)← H3C-COOH →(1б) (H3C-COO)2Ba →(2) BaCl2 →(3) BaSO4
(1а) H3C-COOH +Mg →(H3C-COO)2Mg +Н2.
(1б) H3C-COOH +Ba →(H3C-COO)2Ba + Н2;
(2) (H3C-COO)2Ba + 2 НCl→2 CH3COOH + BaCl2;
(3) BaCl2 + H2SO4→ BaSO4 +2 HCl .
Объяснение:
(H3C-COO)2Mg (1а)← H3C-COOH →(1б) (H3C-COO)2Ba →(2) BaCl2 →(3) BaSO4
(1а) H3C-COOH +Mg →(H3C-COO)2Mg +Н2.
(1б) H3C-COOH +Ba →(H3C-COO)2Ba + Н2;
(2) (H3C-COO)2Ba + 2 НCl→2 CH3COOH + BaCl2;
(3) BaCl2 + H2SO4→ BaSO4 +2 HCl .